All these alarms were given special prominence in the IPCC’s 2007 report and each of them has now been shown to be based, not on hard evidence, but on scare stories, derived not from proper scientists but from environmental activists. Those glaciers are not vanishing; the damage to the rainforest is not from climate change but logging and agriculture; African crop yields are more likely to increase than diminish; the modest rise in sea levels is slowing not accelerating; hurricane activity is lower than it was 60 years ago; droughts were more frequent in the past; there has been no increase in floods or heatwaves.

Furthermore, it has also emerged in almost every case that the decision to include these scare stories rather than hard scientific evidence was deliberate. As several IPCC scientists have pointed out about the scare over Himalayan glaciers, for instance, those responsible for including it were well aware that proper science said something quite different. But it was inserted nevertheless – because that was the story wanted by those in charge.